Results 101 to 110 of about 3,345,378 (306)

Diagnostic value of ventilation/perfusion single-photon emission computed tomography/computed tomography for bronchiolitis obliterans syndrome in patients after lung transplantation [PDF]

, 2019
OBJECTIVE: To evaluate the diagnostic value of function volume/morphological volume ratio calculated from ventilation/perfusion single-photon emission computed tomography/computed tomography in distinguishing the lungs with bronchiolitis obliterans ...
Nakashima, Masahiro, Takeda, Yoshihiro, Shinya, Takayoshi, Okawa, Tomoyo, Oto, Takahiro   +4 more
core   +1 more source

Effects of flow‐controlled expiration on oxygenation and early recovery in horses undergoing general anaesthesia

Equine Veterinary Journal, EarlyView.
Abstract Background FLow‐controlled EXpiration (FLEX) has been shown to significantly enhance oxygenation in horses under clinical and experimental conditions. Objectives To compare pulmonary gas exchange during early recovery following general anaesthesia in horses ventilated with FLEX compared with conventional intermittent positive pressure ...
Allison Mika, Jerrianne Brandly, Alycia Frampton, Hope Douglas, Miranda Starr, Henry Benchimol, Klaus Hopster   +6 more
wiley   +1 more source

Time-dependent effects of prone position on ventilation-perfusion matching assessed by electrical impedance tomography in patients with COVID-19 ARDS: sub-analysis of a prospective physiological study

Annals of Intensive Care
Background Prone positioning (PP) has been shown to improve oxygenation in patients with acute respiratory distress syndrome (ARDS); with a focus on its early physiological effects. However, the time-dependent effects of PP on ventilation-perfusion (V/Q)
Yuxian Wang, Yaxiaerjiang Muhetaer, Xin Zheng, Wei Wu, Jiale Tao, Ling Zhu, Jieqiong Song, Zhanqi Zhao, Ming Zhong   +8 more
doaj   +1 more source

Lesión pulmonar apical por SARS-COV-2 y manifestación de cuadro clínico leve. Reporte de un caso

Revista GICOS, 2021
El coronavirus es un agente viral, responsable de la pandemia actual, declarada como una emergencia de salud pública por la OMS, que inició en Wuhan, China. El COVID-19 está causando un compromiso pulmonar severo en algunos pacientes. La tomografía axial
Diego Bratta, Wilmer Peña, Oriana Newman   +2 more
doaj  

Pulmonary embolization causes hypoxemia by redistributing regional blood flow without changing ventilation

, 1998
To explore mechanisms of hypoxemia after acute pulmonary embolism, we measured regional pulmonary blood flow and alveolar ventilation before and after embolization with 780-μm beads in five anesthetized, mechanically ventilated pigs.
Robb W. Glenny, William A. Altemeier, Steve McKinney, H. Thomas Robertson   +3 more
core   +1 more source

High tidal volume ventilation is not deleterious in infant rats exposed to severe hemorrhage [PDF]

, 2010
BACKGROUND: Both high tidal volume (VT) ventilation and hemorrhage induce acute lung injury in adult rodents. It is not known whether injurious ventilation augments lung injury in infant rats exposed to severe hemorrhage.
Nicholls, Philip K., Sly, P.D., Hantos, Z, Sly, Peter D., Berry, L.J., Cannizzaro, V; https://orcid.org/, Hantos, Zoltán, Cannizzaro, V., Berry, Luke J., Nicholls, P.K., Hantos, Z., Nicholls, P K, Sly, P D, Berry, L J, Cannizzaro, Vincenzo   +14 more
core   +1 more source

Intraoperative monitoring and anaesthetic complications in horses: A secondary analysis of the CEPEF4 multicentre cohort

Equine Veterinary Journal, EarlyView.
Abstract Background CEPEF4 provides the most comprehensive contemporary dataset on perianaesthetic risk in horses. Intraoperative complications, monitoring and American Society of Anesthesiologists (ASA)‐stratified associations with death remain incompletely described.
J. I. Redondo, P. M. Taylor, R. Bettschart‐Wolfensberger, G. M. Johnston, L. Domenech, M. Gozalo‐Marcilla   +5 more
wiley   +1 more source

Agreement between invasive and oscillometric blood pressure measurements during controlled haemorrhage in anaesthetised horses

Equine Veterinary Journal, EarlyView.
Abstract Background Defining the reliability of oscillometry (NIBP) for measuring mean arterial pressure (MAP) during normotension and hypovolaemic hypotension could help with cardiovascular monitoring and management in horses anaesthetised in dorsal recumbency.
Colleen Hickey, Alonso Guedes, Jessica Byrne, Eduardo Hatschbach, Brian Walters, Aaron Rendahl, Caitlin Tearney   +6 more
wiley   +1 more source

Pulmonary blood flow and ventilation-perfusion heterogeneity

, 1991
We studied the independent influence of changes in perfusion on pulmonary gas exchange in the left lower lobe (LLL) of anesthetized dogs. Blood flow to the LLL (QLLL) was raised 50% (increased QLLL) or reduced 50% (decreased QLLL) from baseline by ...
K. B. Domino, F. W. Cheney, B. L. Eisenstein, M. P. Hlastala   +3 more
core   +1 more source

Warmed intravenous fluid administration attenuated a reduction in body temperature in anaesthetised horses

Equine Veterinary Journal, EarlyView.
Abstract Background Peri‐anaesthetic hypothermia is a well‐documented complication of general anaesthesia and is associated with prolonged recovery, impaired wound healing, and delayed coagulation. Fluid warmers can be used to mitigate heat loss, but there is little evidence supporting their effectiveness in equine anaesthesia.
Miranda P. Starr, Alycia Frampton, Allison Mika, Klaus Hopster, Hope Douglas   +4 more
wiley   +1 more source